Skip to main content

Notes: Comparison of Leaf Area Index Estimates from Tree Allometrics and Measured Light Interception

Buy Article:

$29.50 plus tax (Refund Policy)

Abstract:

We compared estimates of leaf area index (LAI) based on tree allometrics and light interception in 15 lodgepole pine (Pinus contorta var. latifolia) stands in southeastern Wyoming. LAI from stem allometrics was estimated with a local equation demonstrated to produce accurate and unbiased leaf area estimates for the stand conditions in this study. LAI from measured light interception, estimated with a species-average light extinction coefficient using the Beer-Lambert Law, was not correlated with LAI determined from tree allometrics. Light extinction coefficients varied from 0.29 to 0.67 when determined from allometric estimates of LAI and measured light interception. The derived light extinction coefficients were inversely correlated with LAI (r² = 0.79). High LAI may be associated with canopy architectures where foliage distribution results in reduced light capture effectiveness. Variation in light capture by lodgepole pine canopies may preclude the use of a species average light extinction coefficient for estimating LAI. For. Sci. 37(6):1682-1688.

Keywords: Pinus contorta; forest canopy; light attenuation; radiation

Document Type: Miscellaneous

Affiliations: Department of Forest Resources and Ecology Center, Utah State University, Logan, UT 84322-5215

Publication date: December 1, 1991

More about this publication?
  • Membership Information
  • ingentaconnect is not responsible for the content or availability of external websites
saf/fs/1991/00000037/00000006/art00019
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more